Oh, I stumbled onto something relevant.

I noticed on the host that was working correctly that the ifcfg-enp6s0 file included a line for "BRIDGE=ovirtmgmt", and the other two didn't have that line. When I added that line to the other two hosts, and restarted networking, I was able to get those hosts in a status of "UP".

That file is autogenerated by VDSM, so I wondered if it would survive a reboot. When I rebooted, the line had been removed again by VDSM.

So, I guess the final question then is how to get persistence in keeping this BRIDGE line from getting removed across reboots?

On 1/13/2017 2:54 PM, Nir Soffer wrote:

On Fri, Jan 13, 2017 at 9:24 PM, paul.greene.va
<paul.greene.va@verizon.net> wrote:

Output below ...



On 1/13/2017 1:47 PM, Nir Soffer wrote:

On Fri, Jan 13, 2017 at 5:45 PM, paul.greene.va
<paul.greene.va@verizon.net> wrote:

All,

I'm having an issue with the vdsmd service refusing to start on a fresh
install of RHEL 7.2, RHEV version 4.0.

It initially came up correctly, and the command "ip a" showed a
"vdsmdummy"
interface and a "ovirtmgmt" interface. However after a couple of reboots,
those interfaces disappeared, and running "systemctl status vdsmd"
generated
the message "Dependency failed for Virtual Desktop Service Manager/Job
vdsmd.service/start failed with result 'dependency'". Didn't say what
dependency though

I have 3 hosts where this happening on 2 out of 3 hosts. For some odd
reason, the one host isn't having any problems.

In a Google search I found an instance where system clock timing was out
of
sync, and that messed it up. I checked all three hosts, as well as the
RHEV
manager and they all had chronyd running and the clocks appeared to be in
sync.

After a reboot the virtual interfaces usually initially come up, but go
down
again within a few minutes.

Running journalctl -xe gives these three messages:

"failed to start Virtual Desktop Server Manager network restoration"

"Dependency failed for Virtual Desktop Server Manager"  (but it doesn't
say
which dependency failed"

"Dependency failed for MOM instance configured for VDSM purposes"
(again,
doesn't way which dependency)

Any suggestions?

Can you share the output of:

systemctl status vdsmd
systemctl status mom
systemctl status libvirtd
journalctl -xe

Nir

Sure, here you go ....



[root@rhevh03 vdsm]# systemctl status vdsmd
ā vdsmd.service - Virtual Desktop Server Manager
    Loaded: loaded (/usr/lib/systemd/system/vdsmd.service; enabled; vendor
preset: enabled)
    Active: inactive (dead)

Jan 13 12:01:53 rhevh03 systemd[1]: Dependency failed for Virtual Desktop
Server Manager.
Jan 13 12:01:53 rhevh03 systemd[1]: Job vdsmd.service/start failed with
result 'dependency'.
Jan 13 13:51:50 rhevh03 systemd[1]: Dependency failed for Virtual Desktop
Server Manager.
Jan 13 13:51:50 rhevh03 systemd[1]: Job vdsmd.service/start failed with
result 'dependency'.
Jan 13 13:55:15 rhevh03 systemd[1]: Dependency failed for Virtual Desktop
Server Manager.
Jan 13 13:55:15 rhevh03 systemd[1]: Job vdsmd.service/start failed with
result 'dependency'.



[root@rhevh03 vdsm]# systemctl status momd
ā momd.service - Memory Overcommitment Manager Daemon
    Loaded: loaded (/usr/lib/systemd/system/momd.service; static; vendor
preset: disabled)
    Active: inactive (dead) since Fri 2017-01-13 13:53:09 EST; 2min 26s ago
   Process: 28294 ExecStart=/usr/sbin/momd -c /etc/momd.conf -d --pid-file
/var/run/momd.pid (code=exited, status=0/SUCCESS)
  Main PID: 28298 (code=exited, status=0/SUCCESS)

Jan 13 13:53:09 rhevh03 systemd[1]: Starting Memory Overcommitment Manager
Daemon...
Jan 13 13:53:09 rhevh03 systemd[1]: momd.service: Supervising process 28298
which is not our child. We'll most likely not notice when it exits.
Jan 13 13:53:09 rhevh03 systemd[1]: Started Memory Overcommitment Manager
Daemon.
Jan 13 13:53:09 rhevh03 python[28298]: No worthy mechs found



[root@rhevh03 vdsm]# systemctl status libvirtd
ā libvirtd.service - Virtualization daemon
    Loaded: loaded (/usr/lib/systemd/system/libvirtd.service; enabled; vendor
preset: enabled)
   Drop-In: /etc/systemd/system/libvirtd.service.d
            āāunlimited-core.conf
    Active: active (running) since Fri 2017-01-13 13:50:47 EST; 8min ago
      Docs: man:libvirtd(8)
            http://libvirt.org
  Main PID: 27964 (libvirtd)
    CGroup: /system.slice/libvirtd.service
            āā27964 /usr/sbin/libvirtd --listen

Jan 13 13:50:47 rhevh03 systemd[1]: Starting Virtualization daemon...
Jan 13 13:50:47 rhevh03 systemd[1]: Started Virtualization daemon.
Jan 13 13:53:09 rhevh03 libvirtd[27964]: libvirt version: 2.0.0, package:
10.el7_3.2 (Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla>,
2016-11-10-04:43:57, x86-034.build.eng.bos.redhat.com)
Jan 13 13:53:09 rhevh03 libvirtd[27964]: hostname: rhevh03
Jan 13 13:53:09 rhevh03 libvirtd[27964]: End of file while reading data:
Input/output error


[root@rhevh03 vdsm]# journalctl -xe
Jan 13 13:55:15 rhevh03 vdsm-tool[28334]: File
"/usr/lib/python2.7/site-packages/vdsm/network/configurators/ifcfg.py", line
951, in _exec_ifup
Jan 13 13:55:15 rhevh03 vdsm-tool[28334]: _exec_ifup_by_name(iface.name,
cgroup)
Jan 13 13:55:15 rhevh03 vdsm-tool[28334]: File
"/usr/lib/python2.7/site-packages/vdsm/network/configurators/ifcfg.py", line
937, in _exec_ifup_by_name
Jan 13 13:55:15 rhevh03 vdsm-tool[28334]: raise
ConfigNetworkError(ERR_FAILED_IFUP, out[-1] if out else '')
Jan 13 13:55:15 rhevh03 vdsm-tool[28334]:
vdsm.network.errors.ConfigNetworkError: (29, 'Determining IP information for
ovirtmgmt... failed.')
Jan 13 13:55:15 rhevh03 vdsm-tool[28334]: Traceback (most recent call last):
Jan 13 13:55:15 rhevh03 vdsm-tool[28334]: File "/usr/bin/vdsm-tool", line
219, in main
Jan 13 13:55:15 rhevh03 vdsm-tool[28334]: return
tool_command[cmd]["command"](*args)
Jan 13 13:55:15 rhevh03 vdsm-tool[28334]: File
"/usr/lib/python2.7/site-packages/vdsm/tool/restore_nets.py", line 41, in
restore_command
Jan 13 13:55:15 rhevh03 vdsm-tool[28334]: exec_restore(cmd)
Jan 13 13:55:15 rhevh03 vdsm-tool[28334]: File
"/usr/lib/python2.7/site-packages/vdsm/tool/restore_nets.py", line 54, in
exec_restore
Jan 13 13:55:15 rhevh03 vdsm-tool[28334]: raise EnvironmentError('Failed to
restore the persisted networks')
Jan 13 13:55:15 rhevh03 vdsm-tool[28334]: EnvironmentError: Failed to
restore the persisted networks
Jan 13 13:55:15 rhevh03 postfix/local[28598]: 05920804620D:
to=<root@localhost.localdomain>, orig_to=<root@localhost>, relay=local,
delay=0.03, delays=0.02/0.01/0/0, dsn=2.0.0, status=sent (delivered to
Jan 13 13:55:15 rhevh03 postfix/qmgr[3522]: 05920804620D: removed
Jan 13 13:55:15 rhevh03 systemd[1]: vdsm-network.service: main process
exited, code=exited, status=1/FAILURE
Jan 13 13:55:15 rhevh03 systemd[1]: Failed to start Virtual Desktop Server
Manager network restoration.
-- Subject: Unit vdsm-network.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit vdsm-network.service has failed.

Seems that you have a networking issue, adding Dan.

--
-- The result is failed.
Jan 13 13:55:15 rhevh03 systemd[1]: Dependency failed for Virtual Desktop
Server Manager.
-- Subject: Unit vdsmd.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit vdsmd.service has failed.
--
-- The result is dependency.
Jan 13 13:55:15 rhevh03 systemd[1]: Dependency failed for MOM instance
configured for VDSM purposes.
-- Subject: Unit mom-vdsm.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit mom-vdsm.service has failed.
--
-- The result is dependency.
Jan 13 13:55:15 rhevh03 systemd[1]: Job mom-vdsm.service/start failed with
result 'dependency'.
Jan 13 13:55:15 rhevh03 systemd[1]: Job vdsmd.service/start failed with
result 'dependency'.
Jan 13 13:55:15 rhevh03 systemd[1]: Unit vdsm-network.service entered failed
state.
Jan 13 13:55:15 rhevh03 systemd[1]: vdsm-network.service failed.
Jan 13 13:55:15 rhevh03 polkitd[1675]: Unregistered Authentication Agent for
unix-process:28317:681858 (system bus name :1.121, object path
/org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.
Jan 13 14:00:01 rhevh03 systemd[1]: Started Session 16 of user root.
-- Subject: Unit session-16.scope has finished start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit session-16.scope has finished starting up.
--
-- The start-up result is done.
Jan 13 14:00:01 rhevh03 systemd[1]: Starting Session 16 of user root.
-- Subject: Unit session-16.scope has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit session-16.scope has begun starting up.
Jan 13 14:00:01 rhevh03 CROND[28607]: (root) CMD (/usr/lib64/sa/sa1 1 1)

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